Prefabricated cable laying groove structure

Abstract

The invention relates to the technical field of cable laying, in particular to a prefabricated cable laying groove structure which comprises a plurality of concrete groove bodies which are evenly distributed and spliced with one another, the concrete groove bodies are of U-shaped structures with upward openings, and connecting pieces are installed on the inner sides of the two vertical sections of each concrete groove body in a bilateral symmetry mode. A first connecting hole is formed in the connecting piece. The supporting unit can be directly and quickly clamped on the concrete groove body, and does not need to be fixed through a plurality of bolts, so that the operation steps of repeated installation of constructors are reduced, the investment of labor force is reduced, the laying efficiency of the whole cable laying groove structure is greatly improved, and the construction cost is reduced. And the number of the corresponding supporting parts of the supporting unit can be adjusted according to the number of cables needing to be laid, so that the supporting unit has enough supporting strength, drilling operation on the concrete groove body is not needed, and the applicability of the supporting unit is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable laying, and in particular to a prefabricated assembled cable laying groove structure. Background Art

[0002] The prefabricated and assembled cable laying trench structure is a cable trench structure that adopts modular design, prefabrication and on-site assembly. It has the advantages of fast construction speed, good quality and environmental protection.

[0003] There are mainly two types of existing prefabricated cable laying trenches. One includes a bottom plate, side plates, a cover plate and a metal support. During construction, the bottom plate is first laid on the cushion layer, and then the side plates are spliced ​​with the bottom plate, and then the metal support plates are connected to the side plates, and finally the cover plates are covered to the upper ends of the side plates; the other directly adopts an integrated trench structure. During construction, the integrated trench structure is directly placed on the cushion layer and spliced; however, the above two existing prefabricated cable laying trench structures are usually only connected by a concave-convex fitting method or a bolt connection method. The concave-convex fitting method will result in poor overall continuity after long-term use. If the soil bearing capacity of the laying area is uneven, it is easy to cause inconsistent settlement of the trench segments, causing cracking of the joints, tilting of the side plates and even breaking of the bottom plate, which ultimately destroys the stability of the cable laying space; and the bolt thread connection method requires a large number of bolts, and the connection operation steps are cumbersome. In addition, the connection of the metal support and the side plates also requires multiple bolts, which reduces the efficiency of splicing between multiple assembled cable laying trench structures and increases labor input.

[0004] Therefore, there is an urgent need to provide an assembled cable laying groove structure that can improve construction efficiency and connection strength. Summary of the Invention

[0005] Based on this, it is necessary to provide a prefabricated and assembled cable laying trench structure, which aims to solve the problems caused by the existing prefabricated and assembled cable laying trench structure during construction.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a prefabricated assembled cable laying groove structure, comprising: a plurality of evenly distributed and mutually spliced ​​concrete trough bodies, the concrete trough body is a U-shaped structure with the opening facing upward, and the inner sides of the two vertical sections of the concrete trough body are symmetrically installed with connecting parts, and a connecting hole is opened on the connecting part.

[0007] The prefabricated and assembled cable laying groove structure also includes a support unit, two of which are provided and symmetrically distributed front and back in the concrete trough body. The support unit includes a support frame arranged above two connecting parts on the same side. Both ends of the support frame are plugged with a card tube, which is plugged into the corresponding connecting hole. A plurality of evenly distributed support parts are slidably penetrated on the support frame.

[0008] The support part includes a positioning frame that is slidably installed on the support frame. The positioning frame is a U-shaped structure with an opening facing the middle of the concrete trough. A plurality of supporting rods evenly distributed from top to bottom are installed in the positioning frame. A limiting seat is installed at the upper end of the supporting rod away from the positioning frame, and a limiting support plate is hinged on the limiting seat.

[0009] The prefabricated and assembled cable laying groove structure also includes a connection unit, which is provided in multiple numbers and is respectively located on the inner side of the joint of two adjacent concrete troughs. The connection unit includes a splicing frame arranged on the inner side of the joint of the two concrete troughs. The splicing frame is a U-shaped structure with the opening facing upward. The inner sides of the two vertical sections of the splicing frame are both installed with splicing plates located at the lower end of the connecting piece. Two connection holes 2 coaxially distributed with the corresponding connection holes are symmetrically provided on the splicing plate, and the connection hole 2 is plugged into the corresponding card tube.

[0010] The prefabricated and assembled cable laying groove structure also includes a cover plate unit, which is provided in plurality and covers the corresponding upper ends of the concrete trough bodies respectively. The cover plate unit includes a concrete cover plate covering the upper ends of the corresponding concrete trough bodies, and the four corners of the lower end of the concrete cover plate are equipped with limiting parts that are plugged into the corresponding card tubes.

[0011] Preferably, the support unit further includes a plurality of positioning holes evenly arranged on the support frame and a plurality of positioning portions respectively connected to corresponding positioning frames.

[0012] Preferably, the support portion further comprises a plurality of baffles rotatably connected to the ends of the plurality of supporting rods away from the positioning frame, and a support column is installed at the lower end of the lowest supporting rod.

[0013] Preferably, the positioning portion includes a positioning plate fixedly connected to the outer side of the corresponding positioning frame and located above the support frame. A positioning rod is passed through the middle of the positioning plate, and the positioning rod is plugged into the corresponding positioning hole.

[0014] Preferably, the limiting part includes a connecting sleeve installed on the concrete cover plate, the limiting rod is connected to the connecting sleeve by threaded fitting, the limiting rod passes through the corresponding clamping tube, the limiting sleeve is installed on the annular surface of the limiting rod, the limiting sleeve is arranged on the upper end of the clamping tube, and the lower end of the limiting sleeve is in close contact with the upper end of the support frame.

[0015] Preferably, the connecting piece is in an L-shaped structure, and the two connecting pieces on the same side of the joint of two adjacent concrete troughs are symmetrically distributed and formed with a clamping groove for clamping with the vertical section of the splicing frame.

[0016] Preferably, a rubber pad for sealing the joint between two adjacent concrete troughs is laid on the middle part of the outer side of the splicing frame.

[0017] Preferably, a splicing groove is provided at one end of the concrete trough body, and a splicing protrusion that is plugged into and fits with the splicing groove is provided at the other end of the concrete trough body.

[0018] In summary, the present invention includes the following beneficial technical effects: 1. The support unit adopted in the present invention can be directly and quickly clamped on the concrete trough body without the need for fixing with multiple bolts, reducing the construction personnel's repeated installation steps, not only reducing the labor input, but also greatly improving the laying efficiency of the entire cable laying groove structure, and the support unit can adjust the number of corresponding support parts according to the number of cables required to be laid, so as to ensure that it has sufficient support strength, and there is no need to fix the concrete trough body with bolts, thereby improving the applicability of the support unit.

[0019] 2. The support sheet used in the present invention can cooperate with the connecting unit while being clamped on the concrete trough body to realize the function of preliminary limiting the two adjacent concrete trough bodies, and then cooperate with the cover unit to realize the function of re-limiting the adjacent concrete trough bodies. It not only improves the efficiency of splicing the two adjacent concrete trough bodies, but also improves the strength of the splicing of the two adjacent concrete trough bodies, reduces the influence of the surrounding environment on the connection between the two adjacent concrete trough bodies, and avoids separation at the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 A schematic structural diagram of the present invention without the cover plate unit is shown.

[0023] Figure 3 A front view of the present invention is shown.

[0024] Figure 4 A left side view of the present invention is shown.

[0025] Figure 5 Shown Figure 3 Cross-sectional view of AA in the figure.

[0026] Figure 6 Shown Figure 5 Magnified view of area C in the middle.

[0027] Figure 7 Shown Figure 4 Cross-sectional view of the middle part BB.

[0028] Figure 8 The figure shows the structural diagram of the concrete tank body and the supporting unit of the present invention.

[0029] Figure 9 A schematic diagram of the splicing of two adjacent concrete troughs of the present invention is shown.

[0030] Figure 10 The figure shows a schematic structural diagram of the connection unit of the present invention.

[0031] Among them, the above-mentioned drawings include the following figure marks: 1. Concrete trough body; 10. Connecting part; 11. Connecting hole 1; 12. Splicing groove; 13. Splicing protrusion; 2. Support unit; 20. Support frame; 21. Clamping tube; 22. Support part; 220. Positioning frame; 221. Support rod; 222. Limit seat; 223. Limit support plate; 224. Support column; 225. Baffle; 23. Positioning hole; 24. Positioning part; 240. Positioning plate; 241. Positioning rod; 3. Connecting unit; 30. Splicing frame; 31. Splicing plate; 32. Connecting hole 2; 33. Rubber pad; 4. Cover unit; 40. Concrete cover; 41. Limiting part; 410. Connecting sleeve; 411. Limiting rod; 412. Limiting sleeve. DETAILED DESCRIPTION

[0032] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 9 A prefabricated and assembled cable laying groove structure is characterized in that it includes a plurality of evenly distributed and mutually spliced ​​concrete trough bodies 1, the concrete trough body 1 is a U-shaped structure with the opening facing upward, and the inner sides of the two vertical sections of the concrete trough body 1 are symmetrically installed with connectors 10 by pre-embedded means. The connector 10 is an L-shaped structure, and a connecting hole 11 is provided on the connector 10. A splicing groove 12 is provided at one end of the concrete trough body 1, and a splicing protrusion 13 is provided at the other end of the concrete trough body 1 to be plugged into the splicing groove 12.

[0034] See Figure 3 、 Figure 7 、 Figure 9 Figure 10 The prefabricated and assembled cable laying trench junction also includes a plurality of connection units 3 respectively located on the inner side of the joint of two adjacent concrete trough bodies 1. The connection unit 3 includes a splicing frame 30 arranged on the inner side of the joint of the two concrete trough bodies 1. The splicing frame 30 is a U-shaped structure with the opening facing upward. The inner sides of the two vertical sections of the splicing frame 30 are both installed with splicing plates 31 located at the lower end of the connecting piece 10. The two connecting pieces 10 on the same side of the splicing of the two adjacent concrete trough bodies 1 are symmetrically distributed and formed with a clamping groove for clamping with the vertical section of the splicing frame 30.

[0035] During the specific work, a trench for laying is dug on the foundation to be laid by using existing excavation equipment, and then multiple concrete troughs 1 to be laid are transported to the laying site, and multiple concrete troughs 1 are laid from one side of the trench to the other side by using existing cranes. During the laying process, each time a concrete trough 1 is laid, a splicing frame 30 is stuck in the gap between the two connecting pieces 10 at the splicing end of the concrete trough 1 and the two vertical sections of the concrete trough 1, and then the next concrete trough 1 is spliced ​​to the laid concrete. At the splicing end of the trough body 1, the splicing groove 12 between the two adjacent concrete trough bodies 1 is plugged into the splicing protrusion 13, and this step is repeated until multiple concrete trough bodies 1 are spliced. The lower end of each splicing frame 30 is close to the splicing of the two adjacent concrete trough bodies 1, and the two vertical sections of the splicing frame 30 are respectively located in the card groove formed by the two adjacent connecting parts 10. The splicing plate 31 on the vertical section of the splicing frame 30 is located at the lower end of the corresponding two connecting parts 10. The connecting part 10 is an existing plate-shaped or frame-shaped structure, which is not limited here.

[0036] See Figure 1 、 Figure 2 、 Figure 5 、 Figure 7 and Figure 8 The prefabricated assembled cable laying trench junction also includes two support units 2 that are symmetrically distributed front and back in the concrete trough body 1. The support unit 2 includes a support frame 20 arranged above two connecting members 10 on the same side. The support unit 2 also includes a plurality of positioning holes 23 evenly opened on the support frame 20 and a plurality of positioning parts 24 respectively connected to the corresponding positioning frames 220.

[0037] See Figure 7 and Figure 8 A plurality of evenly distributed support parts 22 are slidably provided on the support frame 20 , and the support part 22 includes a positioning frame 220 slidably provided on the support frame 20 , and the positioning frame 220 is U-shaped and has an opening toward the middle of the concrete trough 1 .

[0038] See Figure 8The positioning part 24 comprises a positioning plate 240 fixedly connected to the outer side of the corresponding positioning frame 220 and located above the support frame 20, and a positioning rod 241 is arranged in the middle of the positioning plate 240 and is inserted into the corresponding positioning hole 23.

[0039] In specific work, according to the number of cables to be laid, a corresponding number of positioning frames 220 are selected and sleeved on the support frame 20, the positioning frame 220 drives the positioning plate 240 to move synchronously, then each positioning frame 220 is moved to the corresponding position, and then a plurality of positioning rods 241 are sequentially inserted into the corresponding positioning plate 240 and the corresponding positioning hole 23, thereby achieving the function of limiting the positioning frame 220. This step is repeated to splice a plurality of support units 2. This process can be directly spliced after production without the need for on-site assembly.

[0040] Referring to Figure 9 The support frame 20 is inserted into the clamping pipe 21 at both ends, and the clamping pipe 21 is inserted into the corresponding connecting hole one 11.

[0041] Referring to Figure 9 and Figure 10 The inner side of the two vertical sections of the splicing frame 30 is provided with a splicing plate 31 located at the lower end of the connecting piece 10, and two connecting holes two 32 coaxially distributed with the corresponding connecting hole one 11 are symmetrically arranged on the splicing plate 31, and the connecting hole two 32 is inserted into the corresponding clamping pipe 21.

[0042] In specific work, a support ring is installed on the outer ring surface of the clamping pipe 21, which is used to limit the insertion depth of the clamping pipe 21. After the splicing of the plurality of concrete troughs 1 is completed, the plurality of clamping pipes 21 are inserted into the corresponding connecting hole one 11 and connecting hole two 32, thereby achieving the function of connecting the connecting piece 10 and the splicing plate 31, and further achieving the function of connecting the adjacent two concrete troughs 1 through the splicing frame 30. Then, the plurality of support units 2 are placed in the plurality of concrete troughs 1 in sequence. When the support unit 2 is placed, the two ends of the support frame 20 are respectively inserted into the corresponding two clamping pipes 21, and the two clamping pipes 21 support and limit the support frame 20, thereby simultaneously limiting the plurality of support parts 22. This effectively avoids the technical defect that each support part 22 is fixed to the concrete trough 1 by a plurality of bolts in the prior art, greatly improves the laying efficiency of the entire cable laying groove structure, reduces the labor input of construction personnel, and does not need to reserve mounting holes when the concrete trough 1 is prefabricated, thereby reducing the difficulty of prefabricating the concrete trough 1.

[0043] Referring to Figure 5-Figure 8A plurality of supporting rods 221 evenly distributed from top to bottom are installed in the positioning frame 220, and a limiting seat 222 is installed at the upper end of the supporting rod 221 away from the positioning frame 220. The limiting seat 222 has an L-shaped structure, and a limiting support plate 223 is hinged on the limiting seat 222. The supporting part 22 also includes a plurality of baffles 225 respectively rotatably connected to the ends of the plurality of supporting rods 221 away from the positioning frame 220, and a support column 224 is installed at the lower end of the supporting rod 221 at the bottom.

[0044] During specific operation, after the initial positioning of multiple support units 2 is completed, the multiple cables to be laid are laid in turn on the upper ends of multiple support rods 221. The limiting seat 222 and the limiting support plate 223 simultaneously limit the laid multiple cables to prevent the laid multiple cables from falling from the support rod 221. At the same time, the limiting support plate 223 between two adjacent support rods 221 is in a vertical state and supports the support rod 221 located at its upper end. The vertical section of the L-shaped limiting seat 222 cooperates with the baffle 225 to limit the limiting support plate 223 to keep it in a vertical state. The multiple limiting support plates 223 and the support columns 224 work together to improve the overall supporting capacity of the support part 22 and reduce the force strength of the support frame 20 after supporting the multiple support parts 22, thereby avoiding the bending and deformation of the support frame 20 and improving the service life of the support unit 2.

[0045] The prefabricated assembled cable laying trench junction also includes a plurality of cover plate units 4 respectively covering the upper ends of the corresponding concrete trough bodies 1. The cover plate units 4 include concrete cover plates 40 covering the upper ends of the corresponding concrete trough bodies 1. The four corners of the lower end of the concrete cover plates 40 are each equipped with limiting portions 41 that are plugged into and cooperate with the corresponding clamping tubes 21.

[0046] See Figure 1 、 Figure 2 、 Figure 5 and Figure 7 The limiting part 41 includes a connecting sleeve 410 installed on the concrete cover plate 40, and a limiting rod 411 is connected to the connecting sleeve 410 by threaded fitting. The limiting rod 411 passes through the corresponding clamping tube 21. A limiting sleeve 412 is installed on the annular surface of the limiting rod 411. The limiting sleeve 412 is sleeved on the upper end of the clamping tube 21, and the lower end of the limiting sleeve 412 is tightly attached to the upper end of the support frame 20.

[0047] See Figure 10 A rubber pad 33 for sealing the joint between two adjacent concrete trough bodies 1 is laid on the middle part of the outer side of the splicing frame 30.

[0048] During the specific work, after the laying of multiple cables is completed, multiple limit rods 411 are first connected to the connecting sleeve 410 by bolts, and then the concrete cover plate 40 is covered to the upper end of the corresponding concrete trough 1. At the same time, the concrete cover plate 40 drives multiple limit rods 411 to pass through the clamping tube 21 and contact the splicing frame 30. The concrete cover plate 40 further presses the splicing frame 30 downward by its own gravity, so that the rubber pad 33 is close to the splicing of the two adjacent concrete troughs 1, further strengthening the sealing strength of the splicing of the two adjacent concrete troughs 1. At the same time, the limit sleeve 412 is sleeved on the corresponding clamping tube 21 The lower end presses down the support frame 20, and the concrete cover plate 40 limits the support frame 20 by its own gravity. The limiting rod 411 fills the clamping tube 21, thereby increasing the connection strength between the connector 10 and the splicing plate 31, and realizing the overall connection strength after the multiple concrete troughs 1 are spliced. After the multiple concrete cover plates 40 are installed, the waterproof glue is applied to the splicing of the concrete trough 1 to further seal the gaps between the spliced ​​multiple concrete troughs 1 and the multiple concrete cover plates 40, and then the soil is backfilled and leveled, and the prefabricated assembled cable laying trench structure is completed.

[0049] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0050] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A prefabricated cable laying groove structure, characterized by: It comprises a plurality of concrete troughs spliced ​​together, wherein connecting pieces are symmetrically installed on the inner sides of the two vertical sections of the concrete trough, and a connecting hole 1 is opened on the connecting piece; Two support units are provided and symmetrically distributed in the front and back of the concrete tank body. The support units include a support frame provided above the two connecting members on the same side. Both ends of the support frame are plugged with a clamping tube, which is plugged into the corresponding connecting hole. A plurality of support parts are slidably penetrated on the support frame. The support portion includes a positioning frame that is slidably mounted on the support frame, a plurality of supporting rods are mounted in the positioning frame, and a limit seat is mounted on the upper end of the supporting rod away from the positioning frame, and a limit support plate is hinged on the limit seat; The connection unit is provided with multiple units, and the connection unit includes a splicing frame arranged on the inner side of the splicing of the two concrete troughs, and the inner sides of the two vertical sections of the splicing frame are both installed with a splicing plate located at the lower end of the connector, and two connection holes 2 are symmetrically provided on the splicing plate, and the connection holes 2 are plugged into the corresponding card tubes; The cover plate unit is provided with a plurality of said cover plate units, including a concrete cover plate covering the upper end of the corresponding concrete trough body, and the four corners of the lower end of the concrete cover plate are all equipped with limiting parts that are plugged into and matched with the corresponding card tubes.

2. The prefabricated cable laying groove structure according to claim 1, characterized in that: The support unit further comprises a plurality of positioning holes evenly arranged on the support frame and a plurality of positioning parts respectively connected to corresponding positioning frames.

3. The prefabricated cable laying groove structure according to claim 1, characterized in that: The support portion further comprises a plurality of baffles which are rotatably connected to the ends of the plurality of supporting rods away from the positioning frame, and a support column is installed at the lower end of the lowest supporting rod.

4. The prefabricated cable laying groove structure according to claim 2, characterized in that: The positioning portion includes a positioning plate fixedly connected to the outer side of the corresponding positioning frame and located above the support frame. A positioning rod is passed through the middle of the positioning plate, and the positioning rod is plugged into the corresponding positioning hole.

5. The prefabricated cable laying groove structure according to claim 1, characterized in that: The limiting part includes a connecting sleeve installed on the concrete cover plate, a limiting rod is connected to the connecting sleeve by threaded fitting, the limiting rod passes through the corresponding clamping tube, and a limiting sleeve is installed on the annular surface of the limiting rod. The limiting sleeve is arranged on the upper end of the clamping tube, and the lower end of the limiting sleeve is tightly attached to the upper end of the support frame.

6. The prefabricated cable laying groove structure according to claim 1, characterized in that: The connecting piece is in an L-shaped structure, and the two connecting pieces on the same side of the joint of two adjacent concrete trough bodies are symmetrically distributed and formed with a clamping groove for clamping with the vertical section of the splicing frame.

7. The prefabricated cable laying groove structure according to claim 1, characterized in that: A rubber pad for sealing the joint between two adjacent concrete troughs is laid on the middle part of the outer side of the splicing frame.

8. The prefabricated cable laying groove structure according to claim 1, characterized in that: One end of the concrete trough body is provided with a splicing groove, and the other end of the concrete trough body is provided with a splicing protrusion which is plugged and matched with the splicing groove.

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